Vibrating darby



FIG. 1 is a generally perspective view of a vibrating darby showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for "vibrating darby", as shown. 